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Finding the Fourth Proportional to 206,417.70, 309,626.55 and 174,924.90

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Solution

The fourth proportional to 206,417.70, 309,626.55 and 174,924.90 is: 262,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,417.70 : 309,626.55 = 174,924.90 : x
  2. Step 2: Convert to fraction form
    206,417.70/309,626.55 = 174,924.90/x
  3. Step 3: Cross multiply
    206,417.70x = 309,626.55 × 174,924.90
  4. Step 4: Simplify right side
    206,417.70x = 54,161,393,296.10
  5. Step 5: Solve for x
    x = 54,161,393,296.10/206,417.70
  6. Step 6: Final answer
    x = 262,387.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.